Speco DVR-16 User Manual page 24

PIN 1. GND
GROUND
PIN 2. — PIN 9. ALARM INPUT
To connect wire from ALARM INPUT ( PIN 2 -- 9 ) to GND ( PIN 1 ) connector, DMR will start recording and
buzzer will be on.
When Menu/ Camera/ Alarm is set up to "Low": When alarm input signal is " Low ", the unit starts to record
and buzzer.
When Menu/ Camera/ Alarm is set up to "High": When alarm input signal is " High ", the unit starts to record
and buzzer.
PIN 10. PIN OFF
PIN 11. RS232-TX
DMR can be controlled remotely by an external device or control system, such as a control keyboard, using
RS-232 serial communications signals.
PIN 12. RS485-A
DMR can be controlled remotely by an external device or control system, such as a control keyboard, using
RS485 serial communications signals.
PIN 13. EXTERNAL ALARM NO
Under normal operation COM disconnect with NO. But when Alarm triggered, COM connect with NO.
PIN 14. PIN OFF
PIN 15. — PIN 22. ALARM INPUT
To connect wire from ALARM INPUT ( PIN 15 -- 22 ) to GND ( PIN 1 ) connector, DMR will start recording
and buzzer will be on.
When Menu/ Camera/ Alarm is set up to "Low": When alarm input signal is " Low ", the unit starts to record
and buzzer.
When Menu/ Camera/ Alarm is set up to "High": When alarm input signal is " High ", the unit starts to record
and buzzer.
PIN 23. RS232-RX
DMR can be controlled remotely by an external device or control system, such as a control keyboard, using
RS-232 serial communications signals.
PIN 24. RS485-B
DMR can be controlled remotely by an external device or control system, such as a control keyboard, using
RS485 serial communications signals.
PIN 25. EXTERNAL ALARM COM
Under normal operation COM disconnect with NO. But when alarm triggered, COM connect with NO.
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